Perhaps you should try some spelling variations:
wang jean » wang yan, wang ban, wang dan
jean chen » ern chen
jin chang » chin chang, joon chang, ying chang
john wong » john song, john bonn
tan ying » fan ying, ran ying, tan yang
dan yang » daun yang, tan yang, wang yang
yulu » zulu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang jean chen yulu ((tan ying) OR (dan yang)) ((jin chang) OR (john wong)) yam ;~.
• Adding a wildcard symbol may retrieve word variants: wang jean chen yulu ((tan ying) or (dan yang)) ((jin chang) or (john wong)) yam ;*.